The pair of equations x = 25 and y = 30 graphically represents lines which are

A.

parallel

B.

coincident

C.

intersecting at (30, 25)

D.

intersecting at (25, 30)

Sample Question

At present Kymaira's age (in years) is 10 more than the square of her daughterCrystal's age. When Crystal grows to her mother’s present age, Kymaira's age wouldbe 13 times the present age of Crystal. Find the present ages of both Kymaira and Crystal.